Moser, D.P., T.C. Onstott, J.K. Fredrickson, F.J. Brockman, D.L. Balkwill, G.R. Drake, S.M. Pfiffner, et al. 2003. “Temporal Shifts in the Geochemistry and Microbial Community Structure of an Ultradeep Mine Borehole Following Isolation”. Geomicrobiology Journal 20: 517-48. doi:10.1080/713851170.

Mailloux, B.J., M.E. Fuller, T.C. Onstott, J. Hall, H. Dong, M.F. DeFlaun, S.H. Streger, et al. 2003. “The Role of Physical, Chemical, and Microbial Heterogeneity on the Field-Scale Transport and Attachment of Bacteria”. Water Resources Research 39: SBH21-SBH217. doi:10.1029/2002WR001591.

Mailloux, B.J., S. Devlin, M.E. Fuller, T.C. Onstott, M.F. DeFlaun, K.-H. Choi, M. Green-Blum, D.J.P. Swift, J. McCarthy, and H. Dong. 2007. “The Limited Role of Aquifer Heterogeneity on Metal Reduction in an Atlantic Coastal Plain Determined by Push-Pull Tests”. Applied Geochemistry 22: 974-95. doi:10.1016/j.apgeochem.2006.12.020.

Lin, L.-H., J. Hall, T.C. Onstott, T. Gihring, B.S. Lollar, E. Boice, L. Pratt, J. Lippmann-Pipke, and R.E.S. Bellamy. 2006. “Planktonic Microbial Communities Associated With Fracture-Derived Groundwater in a Deep Gold Mine of South Africa”. Handbook of Environmental Chemistry, Volume 5: Water Pollution 23: 475-97. doi:10.1080/01490450600875829.

Onstott, T.C., L.-H. Lin, M. Davidson, B. Mislowack, M. Borcsik, J. Hall, G. Slater, et al. 2006. “The Origin and Age of Biogeochemical Trends in Deep Fracture Water of the Witwatersrand Basin, South Africa”. Handbook of Environmental Chemistry, Volume 5: Water Pollution 23: 369-414. doi:10.1080/01490450600875688.

Pfiffner, S.M., J.M. Cantu, A. Smithgall, A.D. Peacock, D.C. White, D.P. Moser, T.C. Onstott, and E. van Heerden. 2006. “Deep Subsurface Microbial Biomass and Community Structure in Witwatersrand Basin Mines”. Geomicrobiology Journal 23: 431-42. doi:10.1080/01490450600875712.

Moser, D.P., T.M. Gihring, F.J. Brockman, J.K. Fredrickson, D.L. Balkwill, M.E. Dollhopf, B.S. Lollar, et al. 2005. “Desulfotomaculum and Methanobacterium Spp. Dominate a 4- to 5-Kilometer-Deep Fault”. Applied and Environmental Microbiology 71: 8773-83. doi:10.1128/AEM.71.12.8773-8783.2005.

Moser, D.P., T.M. Gihring, F.J. Brockman, J.K. Fredrickson, D.L. Balkwill, M.E. Dollhopf, B.S. Lollar, et al. 2005. “Desulfotomaculum and Methanobacterium Spp. Dominate a 4- to 5-Kilometer-Deep Fault”. Applied and Environmental Microbiology 71: 8773-83. doi:10.1128/AEM.71.12.8773-8783.2005.

Simkus, D.N., G.F. Slater, B.S. Lollar, K. Wilkie, T.L. Kieft, C. Magnabosco, M.C.Y. Lau, et al. 2016. “Variations in Microbial Carbon Sources and Cycling in the Deep Continental Subsurface”. Geochimica Et Cosmochimica Acta 173: 264-83. doi:10.1016/j.gca.2015.10.003.

Borgonie, G., B. Linage-Alvarez, A.O. Ojo, S.O.C. Mundle, L.B. Freese, C. Van Rooyen, O. Kuloyo, et al. 2015. “Eukaryotic Opportunists Dominate the Deep-Subsurface Biosphere in South Africa”. Nature Communications 6. doi:10.1038/ncomms9952.

Labonté, J.M., E.K. Field, M. Lau, D. Chivian, E. van Heerden, K.E. Wommack, T.L. Kieft, T.C. Onstott, and R. Stepanauskas. 2015. “Single Cell Genomics Indicates Horizontal Gene Transfer and Viral Infections in a Deep Subsurface Firmicutes Population”. Frontiers in Microbiology 6. doi:10.3389/fmicb.2015.00349.

Magnabosco, C., M. Tekere, M.C.Y. Lau, B. Linage, O. Kuloyo, M. Erasmus, E. Cason, et al. 2014. “Comparisons of the Composition and Biogeographic Distribution of the Bacterial Communities Occupying South African Thermal Springs With Those Inhabiting Deep Subsurface Fracture Water”. Frontiers in Microbiology 5. doi:10.3389/fmicb.2014.00679.

Wilkins, M.J., R.A. Daly, P.J. Mouser, R. Trexler, S. Sharma, D.R. Cole, K.C. Wrighton, et al. 2014. “Trends and Future Challenges in Sampling the Deep Terrestrial Biosphere”. Frontiers in Microbiology 5. doi:10.3389/fmicb.2014.00481.

Vishnivetskaya, T.A., A.C. Layton, M.C.Y. Lau, A. Chauhan, K.R. Cheng, A.J. Meyers, J.R. Murphy, et al. 2014. “Commercial DNA Extraction Kits Impact Observed Microbial Community Composition in Permafrost Samples”. FEMS Microbiology Ecology 87: 217-30. doi:10.1111/1574-6941.12219.

Davidson, M.M., B.J. Silver, T.C. Onstott, D.P. Moser, T.M. Gihring, L.M. Pratt, E.A. Boice, et al. 2011. “Capture of Planktonic Microbial Diversity in Fractures by Long-Term Monitoring of Flowing Boreholes, Evander Basin, South Africa”. Geomicrobiology Journal 28: 275-300. doi:10.1080/01490451.2010.499928.

Lippmann-Pipke, J., Sherwood Lollar, S. Niedermann, N.A. Stroncik, R. Naumann, E. van Heerden, and T.C. Onstott. 2011. “Neon Identifies Two Billion Year Old Fluid Component in Kaapvaal Craton”. Chemical Geology 283: 287-96. doi:10.1016/j.chemgeo.2011.01.028.

Silver, B.J., T.C. Onstott, G. Rose, L.-H. Lin, C. Ralston, B. Sherwood-Lollar, S.M. Pfiffner, T.L. Kieft, and S. McCuddy. 2010. “In Situ Cultivation of Subsurface Microorganisms in a Deep Mafic Sill: Implications for SLiMEs”. Geomicrobiology Journal 27: 329-48. doi:10.1080/01490451003705183.

Lau, M.C.Y., T.L. Kieft, O. Kuloyo, B. Linage-Alvarez, E. van Heerden, M.R. Lindsay, C. Magnabosco, et al. 2016. “An Oligotrophic Deep-Subsurface Community Dependent on Syntrophy Is Dominated by Sulfur-Driven Autotrophic Denitrifiers”. Proceedings of the National Academy of Sciences of the United States of America 113: E7927-E7936. doi:10.1073/pnas.1612244113.

Magnabosco, C., K. Ryan, M.C.Y. Lau, O. Kuloyo, Sherwood Lollar, T.L. Kieft, E. van Heerden, and T.C. Onstott. 2016. “A Metagenomic Window into Carbon Metabolism at 3 Km Depth in Precambrian Continental Crust”. ISME Journal 10: 730-41. doi:10.1038/ismej.2015.150.

Warr, O., C.J. Ballentine, T.C. Onstott, D.M. Nisson, T.L. Kieft, D.J. Hillegonds, and Sherwood Lollar. 2022. “86Kr Excess and Other Noble Gases Identify a Billion-Year-Old Radiogenically-Enriched Groundwater System”. Nature Communications 13. doi:10.1038/s41467-022-31412-2.

Ernakovich, J.G., R.A. Barbato, V.I. Rich, C. Schädel, R.E. Hewitt, S.J. Doherty, E. Whalen, et al. 2022. “Microbiome Assembly in Thawing Permafrost and Its Feedbacks to Climate”. Global Change Biology 28: 5007-26. doi:10.1111/gcb.16231.

Liang, R., Z. Li, M.C.Y. Lau Vetter, T.A. Vishnivetskaya, O.G. Zanina, K.G. Lloyd, S.M. Pfiffner, et al. 2021. “Genomic Reconstruction of Fossil and Living Microorganisms in Ancient Siberian Permafrost”. Microbiome 9. doi:10.1186/s40168-021-01057-2.

Wu, X., A. Chauhan, A.C. Layton, M.C.Y. Lau Vetter, B.T. Stackhouse, D.E. Williams, L. Whyte, S.M. Pfiffner, T.C. Onstott, and T.A. Vishnivetskaya. 2021. “Comparative Metagenomics of the Active Layer and Permafrost from Low-Carbon Soil in the Canadian High Arctic”. Environmental Science and Technology 55: 12683-93. doi:10.1021/acs.est.1c00802.

Wu, X., A. Chauhan, A.C. Layton, M.C.Y. Lau Vetter, B.T. Stackhouse, D.E. Williams, L. Whyte, S.M. Pfiffner, T.C. Onstott, and T.A. Vishnivetskaya. 2021. “Comparative Metagenomics of the Active Layer and Permafrost from Low-Carbon Soil in the Canadian High Arctic”. Environmental Science and Technology 55: 12683-93. doi:10.1021/acs.est.1c00802.

Beam, J.P., E.D. Becraft, J.M. Brown, F. Schulz, J.K. Jarett, O. Bezuidt, N.J. Poulton, et al. 2020. “Ancestral Absence of Electron Transport Chains in Patescibacteria and DPANN”. Frontiers in Microbiology 11. doi:10.3389/fmicb.2020.01848.

Liang, R., M.C.Y. Lau, E.T. Saitta, Z.K. Garvin, and T.C. Onstott. 2020. “Genome-Centric Resolution of Novel Microbial Lineages in an Excavated Centrosaurus Dinosaur Fossil Bone from the Late Cretaceous of North America”. Environmental Microbiomes 15. doi:10.1186/s40793-020-00355-w.

Hamilton-Brehm, S.D., L.E. Stewart, M. Zavarin, M. Caldwell, P.A. Lawson, T.C. Onstott, J. Grzymski, et al. 2019. “Thermoanaerosceptrum Fracticalcis Gen. Nov. Sp. Nov., a Novel Fumarate-Fermenting Microorganism from a Deep Fractured Carbonate Aquifer of the US Great Basin”. Frontiers in Microbiology 10. doi:10.3389/fmicb.2019.02224.

Saitta, E.T., R. Liang, M.C.Y. Lau, C.M. Brown, N.R. Longrich, T.G. Kaye, B.J. Novak, et al. 2019. “Cretaceous Dinosaur Bone Contains Recent Organic Material and Provides an Environment Conducive to Microbial Communities”. ELife 8. doi:10.7554/eLife.46205.001.

Altshuler, I., J. Ronholm, A. Layton, T.C. Onstott, C.W. Greer, and L.G. Whyte. 2019. “Denitrifiers, Nitrogen-Fixing Bacteria and N2O Soil Gas Flux in High Arctic Ice-Wedge Polygon Cryosols”. FEMS Microbiology Ecology 95. doi:10.1093/femsec/fiz049.

Liang, R., M. Lau, T. Vishnivetskay, K.G. Lloyd, W. Wang, J. Wiggins, J. Miller, S. Pfiffner, E.M. Rivkina, and T.C. Onstott. 2019. “Predominance of Anaerobic, Spore-Forming Bacteria in Metabolically Active Microbial Communities from Ancient Siberian Permafrost”. Applied and Environmental Microbiology 85. doi:10.1128/AEM.00560-19.

Heard, A.W., O. Warr, G. Borgonie, B. Linage, O. Kuloyo, J.W. Fellowes, C. Magnabosco, et al. 2018. “South African Crustal Fracture Fluids Preserve Paleometeoric Water Signatures for up to Tens of Millions of Years”. Chemical Geology 493: 379-95. doi:10.1016/j.chemgeo.2018.06.011.

Magnabosco, C., P.H.A. Timmers, M.C.Y. Lau, G. Borgonie, B. Linage-Alvarez, O. Kuloyo, R. Alleva, et al. 2018. “Fluctuations in Populations of Subsurface Methane Oxidizers in Coordination With Changes in Electron Acceptor Availability”. FEMS Microbiology Ecology 94. doi:10.1093/femsec/fiy089.